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Radiative Forcing from Modelled and Observed Stratospheric Ozone Changes Due to the 11-year Solar Cycle : Volume 8, Issue 2 (03/03/2008)

By Isaksen, I. S. A.

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Book Id: WPLBN0003985196
Format Type: PDF Article :
File Size: Pages 19
Reproduction Date: 2015

Title: Radiative Forcing from Modelled and Observed Stratospheric Ozone Changes Due to the 11-year Solar Cycle : Volume 8, Issue 2 (03/03/2008)  
Author: Isaksen, I. S. A.
Volume: Vol. 8, Issue 2
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Rognerud, B., Myhre, G., Zerefos, C., Rumbold, S. T., A. Isakse, I. S., Shine, K. P.,...Haigh, J. D. (2008). Radiative Forcing from Modelled and Observed Stratospheric Ozone Changes Due to the 11-year Solar Cycle : Volume 8, Issue 2 (03/03/2008). Retrieved from

Description: University of Oslo, Department of Geosciences, Oslo, Norway. Three analyses of satellite observations and two sets of model studies are used to estimate changes in the stratospheric ozone distribution from solar minimum to solar maximum and are presented for three different latitudinal bands: Poleward of 30° north, between 30° north and 30° south and poleward of 30° south. In the model studies the solar cycle impact is limited to changes in UV fluxes. There is a general agreement between satellite observation and model studies, particular at middle and high northern latitudes. Ozone increases at solar maximum with peak values around 40 km. The profiles are used to calculate the radiative forcing (RF) from solar minimum to solar maximum. The ozone RF, calculated with two different radiative transfer schemes is found to be negligible (a magnitude of 0.01 Wm−2 or less), compared to the direct RF due to changes in solar irradiance, since contributions from the longwave and shortwave nearly cancel each other. The largest uncertainties in the estimates come from the lower stratosphere, where there is significant disagreement between the different ozone profiles.

Radiative forcing from modelled and observed stratospheric ozone changes due to the 11-year solar cycle

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